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NCP-AII Questions & Answers
Exam Code: NCP-AII
Exam Name: NCP-AI Infrastructure
Certification Provider: NVIDIA
NCP-AII Premium File
170 Questions & Answers
Last Update: Nov 6, 2026
Includes questions types found on actual exam such as drag and drop, simulation, type in, and fill in the blank.
Verified by experts
NCP-AII Questions & Answers
Exam Code: NCP-AII
Exam Name: NCP-AI Infrastructure
Certification Provider: NVIDIA
NCP-AII Premium File
170 Questions & Answers
Last Update: Nov 6, 2026
Includes questions types found on actual exam such as drag and drop, simulation, type in, and fill in the blank.
$87.99
$79.99

NCP-AI Infrastructure NCP-AII Practice Test 47

Question 460

At a GPU cluster site, an installer routes an InfiniBand uplink into an Ethernet-only switch port because connectors fit. Which remediation best targets the underlying cause?

  1. reconnect the BMC management cables to approved OOB network paths
  2. verify intended port media and network technology before recabling
  3. verify the complete port connectivity matrix for each leaf-spine pair
  4. reconcile transceiver serial cable label and both switch port IDs

Explanation

Correct Answer

B:

Correct. The underlying problem is cable and switch port protocol modes are mismatched. This intervention targets that mechanism. Confirm completion through endpoints negotiate correct fabric mode and establish healthy links.

Incorrect Answers

A:

“reconnect the BMC management cables to approved OOB network paths” addresses management and workload interface assignments are physically confused, but the current hardware or infrastructure issue is cable and switch port protocol modes are mismatched. The option “verify intended port media and network technology before recabling” is more directly tied to the required outcome.

C:

“verify the complete port connectivity matrix for each leaf-spine pair” addresses link count was checked without verifying individual required adjacency, but the current hardware or infrastructure issue is cable and switch port protocol modes are mismatched. The option “verify intended port media and network technology before recabling” is more directly tied to the required outcome.

D:

Useful for cabling documentation omits the identifiers needed for fault isolation, but it does not remove the specific condition: cable and switch port protocol modes are mismatched.

Question 461

For a controlled change involving 'verify intended port media and network technology before recabling', which acceptance evidence would best establish the intended outcome?

  1. endpoints negotiate correct fabric mode and establish healthy links
  2. a neighbor-discovery and optical test locates the intended exact endpoints
  3. sampled serial and port identifiers reconcile across both sides
  4. host power-off management remains reachable while data ports follow data fabric policy

Explanation

Correct Answer

A:

Correct. This is observable proof for the intended change, not just evidence that a command was issued. It establishes endpoints negotiate correct fabric mode and establish healthy links, addressing cable and switch port protocol modes are mismatched.

Incorrect Answers

B:

“a neighbor-discovery and optical test locates the intended exact endpoints” addresses port labels were trusted without validating physical endpoints, but the current hardware or infrastructure issue is cable and switch port protocol modes are mismatched. The option “endpoints negotiate correct fabric mode and establish healthy links” is more directly tied to the required outcome.

C:

“sampled serial and port identifiers reconcile across both sides” addresses cable traceability and labeling records no longer reflect actual endpoints, but the current hardware or infrastructure issue is cable and switch port protocol modes are mismatched. The option “endpoints negotiate correct fabric mode and establish healthy links” is more directly tied to the required outcome.

D:

“host power-off management remains reachable while data ports follow data fabric policy” addresses management and workload interface assignments are physically confused, but the current hardware or infrastructure issue is cable and switch port protocol modes are mismatched. The option “endpoints negotiate correct fabric mode and establish healthy links” is more directly tied to the required outcome.

Question 462

During a readiness assessment, a team swaps the left and right cable labels of an HGX node after maintenance and a future incident review cannot find the real remote port. Which correction should be prioritized?

  1. verify intended port media and network technology before recabling
  2. reconnect the BMC management cables to approved OOB network paths
  3. replace labels with verified end-to-end physical mappings
  4. trace port-to-port connectivity and reconcile switch inventory

Explanation

Correct Answer

C:

Correct. The incident follows from cable traceability and labeling records no longer reflect actual endpoints. This action changes the failing dependency, with sampled serial and port identifiers reconcile across both sides as a measurable success criterion.

Incorrect Answers

A:

“verify intended port media and network technology before recabling” addresses cable and switch port protocol modes are mismatched, but the current hardware or infrastructure issue is cable traceability and labeling records no longer reflect actual endpoints. The option “replace labels with verified end-to-end physical mappings” is more directly tied to the required outcome.

B:

Useful for management and workload interface assignments are physically confused, but it does not remove the specific condition: cable traceability and labeling records no longer reflect actual endpoints.

D:

“trace port-to-port connectivity and reconcile switch inventory” addresses port labels were trusted without validating physical endpoints, but the current hardware or infrastructure issue is cable traceability and labeling records no longer reflect actual endpoints. The option “replace labels with verified end-to-end physical mappings” is more directly tied to the required outcome.

Question 463

A team implements the correction 'replace labels with verified end-to-end physical mappings' for a GPU cluster problem. Which observed result MOST convincingly proves it worked?

  1. sampled serial and port identifiers reconcile across both sides
  2. endpoints negotiate correct fabric mode and establish healthy links
  3. a neighbor-discovery and optical test locates the intended exact endpoints
  4. link neighbor and fabric tests agree with rail-specific topology

Explanation

Correct Answer

A:

Correct. The test directly checks whether cable traceability and labeling records no longer reflect actual endpoints has been remediated. That result supports operational acceptance rather than only configuration presence.

Incorrect Answers

B:

“endpoints negotiate correct fabric mode and establish healthy links” addresses cable and switch port protocol modes are mismatched, but the current hardware or infrastructure issue is cable traceability and labeling records no longer reflect actual endpoints. The option “sampled serial and port identifiers reconcile across both sides” is more directly tied to the required outcome.

C:

“a neighbor-discovery and optical test locates the intended exact endpoints” addresses port labels were trusted without validating physical endpoints, but the current hardware or infrastructure issue is cable traceability and labeling records no longer reflect actual endpoints. The option “sampled serial and port identifiers reconcile across both sides” is more directly tied to the required outcome.

D:

“link neighbor and fabric tests agree with rail-specific topology” addresses rack cabling violates the expected rail-to-switch assignment, but the current hardware or infrastructure issue is cable traceability and labeling records no longer reflect actual endpoints. The option “sampled serial and port identifiers reconcile across both sides” is more directly tied to the required outcome.

Question 464

During an AI-factory acceptance review, the following condition is observed: a spine has the right number of optical links but two cables are cross-connected, leaving one leaf with missing bandwidth. What should the infrastructure engineer do FIRST?

  1. verify the complete port connectivity matrix for each leaf-spine pair
  2. verify intended port media and network technology before recabling
  3. trace port-to-port connectivity and reconcile switch inventory
  4. trace each lane and correct patch-panel polarity and termination

Explanation

Correct Answer

A:

Correct. The incident follows from link count was checked without verifying individual required adjacency. This action changes the failing dependency, with all intended adjacency edges appear in topology and traffic tests as a measurable success criterion.

Incorrect Answers

B:

“verify intended port media and network technology before recabling” addresses cable and switch port protocol modes are mismatched, but the current hardware or infrastructure issue is link count was checked without verifying individual required adjacency. The option “verify the complete port connectivity matrix for each leaf-spine pair” is more directly tied to the required outcome.

C:

“trace port-to-port connectivity and reconcile switch inventory” addresses port labels were trusted without validating physical endpoints, but the current hardware or infrastructure issue is link count was checked without verifying individual required adjacency. The option “verify the complete port connectivity matrix for each leaf-spine pair” is more directly tied to the required outcome.

D:

Useful for intermediate patching changed end-to-end lane mapping, but it does not remove the specific condition: link count was checked without verifying individual required adjacency.

Question 465

After applying 'verify the complete port connectivity matrix for each leaf-spine pair' in an NVIDIA AI factory, what would be the MOST relevant operational verification?

  1. a neighbor-discovery and optical test locates the intended exact endpoints
  2. link neighbor and fabric tests agree with rail-specific topology
  3. per-lane tests show all links to the intended switch interface
  4. all intended adjacency edges appear in topology and traffic tests

Explanation

Correct Answer

D:

Correct. This result validates the change in service conditions and is the closest evidence that link count was checked without verifying individual required adjacency is no longer causing the issue.

Incorrect Answers

A:

“a neighbor-discovery and optical test locates the intended exact endpoints” addresses port labels were trusted without validating physical endpoints, but the current hardware or infrastructure issue is link count was checked without verifying individual required adjacency. The option “all intended adjacency edges appear in topology and traffic tests” is more directly tied to the required outcome.

B:

“link neighbor and fabric tests agree with rail-specific topology” addresses rack cabling violates the expected rail-to-switch assignment, but the current hardware or infrastructure issue is link count was checked without verifying individual required adjacency. The option “all intended adjacency edges appear in topology and traffic tests” is more directly tied to the required outcome.

C:

“per-lane tests show all links to the intended switch interface” addresses intermediate patching changed end-to-end lane mapping, but the current hardware or infrastructure issue is link count was checked without verifying individual required adjacency. The option “all intended adjacency edges appear in topology and traffic tests” is more directly tied to the required outcome.

Question 466

At a GPU cluster site, a rack has two management cables connected to front-panel data ports instead of the BMC OOB ports. Which remediation best targets the underlying cause?

  1. verify intended port media and network technology before recabling
  2. trace and reconnect both endpoints using the authorized cabling schedule
  3. move one NIC path to the specified independent leaf and validate both
  4. reconnect the BMC management cables to approved OOB network paths

Explanation

Correct Answer

D:

Correct. The underlying problem is management and workload interface assignments are physically confused. This intervention targets that mechanism. Confirm completion through host power-off management remains reachable while data ports follow data fabric policy.

Incorrect Answers

A:

“verify intended port media and network technology before recabling” addresses cable and switch port protocol modes are mismatched, but the current hardware or infrastructure issue is management and workload interface assignments are physically confused. The option “reconnect the BMC management cables to approved OOB network paths” is more directly tied to the required outcome.

B:

Useful for rack cabling violates the expected rail-to-switch assignment, but it does not remove the specific condition: management and workload interface assignments are physically confused.

C:

“move one NIC path to the specified independent leaf and validate both” addresses physically separate fabric paths were not actually deployed, but the current hardware or infrastructure issue is management and workload interface assignments are physically confused. The option “reconnect the BMC management cables to approved OOB network paths” is more directly tied to the required outcome.

Question 467

For a controlled change involving 'reconnect the BMC management cables to approved OOB network paths', which acceptance evidence would best establish the intended outcome?

  1. host power-off management remains reachable while data ports follow data fabric policy
  2. endpoints negotiate correct fabric mode and establish healthy links
  3. one-leaf shutdown leaves the required second path available
  4. sampled serial and port identifiers reconcile across both sides

Explanation

Correct Answer

A:

Correct. The test directly checks whether management and workload interface assignments are physically confused has been remediated. That result supports operational acceptance rather than only configuration presence.

Incorrect Answers

B:

“endpoints negotiate correct fabric mode and establish healthy links” addresses cable and switch port protocol modes are mismatched, but the current hardware or infrastructure issue is management and workload interface assignments are physically confused. The option “host power-off management remains reachable while data ports follow data fabric policy” is more directly tied to the required outcome.

C:

“one-leaf shutdown leaves the required second path available” addresses physically separate fabric paths were not actually deployed, but the current hardware or infrastructure issue is management and workload interface assignments are physically confused. The option “host power-off management remains reachable while data ports follow data fabric policy” is more directly tied to the required outcome.

D:

“sampled serial and port identifiers reconcile across both sides” addresses cable traceability and labeling records no longer reflect actual endpoints, but the current hardware or infrastructure issue is management and workload interface assignments are physically confused. The option “host power-off management remains reachable while data ports follow data fabric policy” is more directly tied to the required outcome.

Question 468

During a readiness assessment, a newly installed interconnect trunk uses a patch panel that terminates lane pairs inconsistently. Which correction should be prioritized?

  1. trace port-to-port connectivity and reconcile switch inventory
  2. trace and reconnect both endpoints using the authorized cabling schedule
  3. verify intended port media and network technology before recabling
  4. trace each lane and correct patch-panel polarity and termination

Explanation

Correct Answer

D:

Correct. This directly resolves intermediate patching changed end-to-end lane mapping. A valid handover should also demonstrate per-lane tests show all links to the intended switch interface.

Incorrect Answers

A:

“trace port-to-port connectivity and reconcile switch inventory” addresses port labels were trusted without validating physical endpoints, but the current hardware or infrastructure issue is intermediate patching changed end-to-end lane mapping. The option “trace each lane and correct patch-panel polarity and termination” is more directly tied to the required outcome.

B:

“trace and reconnect both endpoints using the authorized cabling schedule” addresses rack cabling violates the expected rail-to-switch assignment, but the current hardware or infrastructure issue is intermediate patching changed end-to-end lane mapping. The option “trace each lane and correct patch-panel polarity and termination” is more directly tied to the required outcome.

C:

“verify intended port media and network technology before recabling” addresses cable and switch port protocol modes are mismatched, but the current hardware or infrastructure issue is intermediate patching changed end-to-end lane mapping. The option “trace each lane and correct patch-panel polarity and termination” is more directly tied to the required outcome.

Question 469

A team implements the correction 'trace each lane and correct patch-panel polarity and termination' for a GPU cluster problem. Which observed result MOST convincingly proves it worked?

  1. a neighbor-discovery and optical test locates the intended exact endpoints
  2. per-lane tests show all links to the intended switch interface
  3. all intended adjacency edges appear in topology and traffic tests
  4. one-leaf shutdown leaves the required second path available

Explanation

Correct Answer

B:

Correct. It specifically tests the outcome of the approved remediation. The failure mechanism was intermediate patching changed end-to-end lane mapping; the listed result demonstrates the expected behavior.

Incorrect Answers

A:

“a neighbor-discovery and optical test locates the intended exact endpoints” addresses port labels were trusted without validating physical endpoints, but the current hardware or infrastructure issue is intermediate patching changed end-to-end lane mapping. The option “per-lane tests show all links to the intended switch interface” is more directly tied to the required outcome.

C:

“all intended adjacency edges appear in topology and traffic tests” addresses link count was checked without verifying individual required adjacency, but the current hardware or infrastructure issue is intermediate patching changed end-to-end lane mapping. The option “per-lane tests show all links to the intended switch interface” is more directly tied to the required outcome.

D:

“one-leaf shutdown leaves the required second path available” addresses physically separate fabric paths were not actually deployed, but the current hardware or infrastructure issue is intermediate patching changed end-to-end lane mapping. The option “per-lane tests show all links to the intended switch interface” is more directly tied to the required outcome.

Question 470

During an AI-factory acceptance review, the following condition is observed: an operations inventory identifies a replacement transceiver but not its associated cable ID or switch port. What should the infrastructure engineer do FIRST?

  1. reconcile transceiver serial cable label and both switch port IDs
  2. trace port-to-port connectivity and reconcile switch inventory
  3. trace and reconnect both endpoints using the authorized cabling schedule
  4. verify intended port media and network technology before recabling

Explanation

Correct Answer

A:

Correct. This is the corrective step for cabling documentation omits the identifiers needed for fault isolation; it addresses the failure at its source. The confirming observation is automated inventory and manual inspection agree for a random cable sample.

Incorrect Answers

B:

Useful for port labels were trusted without validating physical endpoints, but it does not remove the specific condition: cabling documentation omits the identifiers needed for fault isolation.

C:

“trace and reconnect both endpoints using the authorized cabling schedule” addresses rack cabling violates the expected rail-to-switch assignment, but the current hardware or infrastructure issue is cabling documentation omits the identifiers needed for fault isolation. The option “reconcile transceiver serial cable label and both switch port IDs” is more directly tied to the required outcome.

D:

“verify intended port media and network technology before recabling” addresses cable and switch port protocol modes are mismatched, but the current hardware or infrastructure issue is cabling documentation omits the identifiers needed for fault isolation. The option “reconcile transceiver serial cable label and both switch port IDs” is more directly tied to the required outcome.

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